Another thing about the ATRs, being the only turboprops on the list, is that they are more suitable for small airports, and most of the airports in difficult te

Another thing about the ATRs, being the only turboprops on the list, is that they are more suitable for small airports, and most of the airports in difficult terrain are small airports. Therefore, you are more likely to see ATRs flying tricky routes than the others on the list. At least one crash, however (American Eagle 4184) was due to a flaw in the design: ice rapidly accumulated where it could not be dislodged by the de-icing system.